Improvement in kerosene-lamps



J. s. at T. B. ATTERBURY.

' Lamp.

Patented Jan. 6; 1863.

UNITED STATES PATENT OFFICE.

JAMES S. ATTERBURY AND THOMAS B. ATTERBURY, OF PITTSBURG, PA.

IMPROVEMENT lN KEROSEN E-LANl PS.

Specification forming part of Letters Patent No. 37,267. dated January 6, 1863.

To all whom it may concern:

Be it known that we, JAMES S. ATTERBURY and THOMAS B. ATTERBURY, of Pittsburg, county of Allegheny, and State of Pennsylvania, have invented a new and improved lamp for burning coal and other volatile oil; and we do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying draw ings, and letters of reference marked thereon, like letters in the several figures indicating the same parts, and in which drawings- Figure l is a vertical sectional view of our improved lamp. Fig. 2 is a perspective view of the lamp collar shown in position in Fig. 1. Fig. 3 is an inverted perspective view of the lampcollar shown in Fig. 2, and Fig. 4 a partial enlarged sectional view of the lamp shown in Fig. 1.

The object of our invention is the construction of a lamp. by means of which the volatile oils now in common use-such as coal and paraffineoilsmay be utilized for illuminating purposes without endangering the explosion of the lamp in which such oils may be burned. For suchpurpose we construct the body A of our lamp of glass, and so connect the burner D therewith that the heat of the lampflame communicated to the burner B shall not be transmitted to the body A of the lamp and the oil contained therein. To efi'ect this we construct a detached glass-collar, O, as shown in Figs. 2 and 3, having concentric flanges or rims c and 0 as shown, said flanges or rims being so formed in respect to the neck 61 of the lamp that when placed in position, as shown in Fig. 1, the flange 0 will rest upon the top of the neck (I, and the flange or rim c -will rest upon the shoulder d of the lamp, and this collar may be made of earthenware, porcelain, glass, or other like vitreous or argillaceous material. The collar 0, which, in the process of manufacture, may be either pressed or blown, is provided with a brass screw hoop, e, such hook being set within the collar by pressing the hot glass on and around the hoop while forming the collar, and the hoop being held in position therein, as represented in the figures, by the contraction ofthe glass in the act of cooling, thus dispensing with all cements usually employed to effect the union of the parts, one of which is of glass and the other of metal. The hoop c, as clearly shown in Fig. 4, is provided with a female screw to receive the male screw formed upon the base of the metalburnerB, and thus effect the union of the collar and the burner, as indicated in Fig. 1.

The hoop c, it will be observed by reference to Fig. 4. does not extend to the bottom of the rim 0, so that when the collar is placed in position upon thelamp, as indicatedin that figure, no portion of the hook will comein contact with the body of the lamp.

The glass collar O, when completed,as shown in Figs. 2 and 3, may thereafi er be attached to the neck 41 of the lamp by means of proper cement f, interposed between the flange or rim 0 and said neck, and such cement being forced into the annular space 9, formed by the rims c 0 also suhserving to prevent the transmission of heat to the oil contained in the lamp. These collars may be made as a separate manufacture, as shown in Figs. 1 and 2. We have thus shown a lamp for burning volatile. oils in which the metal used and liable to become heated is effectually insulated from the oil-containing reservoir, and thus obviating all danger of overheating the oil and so causing the explosion of the lamp.

We have shown in the construction of the glass collar 0 a particular mode of connecting the metal screw hoop e thereto, and it is obvious that said hoop might in like manner he applied directly to the neck 61 of the ordinary lamp-body A, (shown in Fig. 1;) but this we do not claim in the present application for a patent.

What we claim in this application for a patent for improvement in lamps for burning coal, par-affine, and other volatile oils, and desire to secure by Letters Patent of the United States, is

As a new article of manufacture, a glass collar, 0, constructed and applied to a lamp in the manner and for the purpose substantially as set forth.

J. S. ATTERBURY. T. B. ATTEltBURY.

\Vitnesses LEONARD S. J oHNs, GEo. KEYSER. 

